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Free JNCIA JN0-103 Official Cert Guide PDF Download
Juniper JN0-103 Exam Certification Details:
| Exam Code | JN0-103 JNCIA-Junos |
| Recommended Training | Introduction to the Junos OS (IJOS) |
| Duration | 90 minutes |
| Exam Price | $200 USD |
| Exam Registration | PEARSON VUE |
| Exam Name | Junos Associate |
| Sample Questions | Juniper JN0-103 Sample Questions |
| Number of Questions | 65 |
| Passing Score | Variable (60-70% Approx.) |
NEW QUESTION 61
Click the Exhibit button.
***Exhibit is Missing***
Referring to the exhibit, what does the number inside the square brackets represent?
- A. metric
- B. route preference
- C. local preference
- D. protocol reference number
Answer: D
NEW QUESTION 62
Refer to Exhibit:
Which parameter at the end of the command would provide information for troubleshooting pusposes?
- A. No-timestamp
- B. Print-ascii
- C. No-resolve
- D. Extensive
Answer: D
NEW QUESTION 63
What are three functions of the RE? (Choose three.)
- A. to monitor the chassis
- B. to implement policing
- C. to enforce stateless firewall filters
- D. to manage the PFE
- E. to maintain the forwarding tables
Answer: A,C,E
NEW QUESTION 64
Which two conditions must exist in a Junos device for traffic to transit the device to a specific destination? Choose Two
- A. A routing table entry for that destination must exist
- B. A routing policy must be in place on the device
- C. A firewall filter must exist to allow traffic to reach that destination
- D. A forwarding table entry for that destination must exist
Answer: A,D
NEW QUESTION 65
Which statement is true about the longerroute-filter match type?
- A. All routes within the specified prefix that are longer or equal to the given prefix up to a defined acceptable prefix length are considered a match.
- B. All routes within the specified prefix that are longer than or equal to the given prefix are considered a match.
- C. All routes within the specified prefix that are longer than the given prefix up to a defined acceptable prefix length are considered a match.
- D. All routes within the specified prefix that are longer than the given prefix are considered a match.
Answer: D
NEW QUESTION 66
What are two configurable physical interface properties? (Choose two.)
- A. link mode
- B. address
- C. MTU
- D. protocol family
Answer: C,D
NEW QUESTION 67
What is the purpose of the discard action of a firewall filter?
- A. The system drops the packet and logs the entry.
- B. The system evaluates the next term in the policy.
- C. The system silently drops the packet.
- D. The system drops the packet and sends an ICMP message.
Answer: C
NEW QUESTION 68
Click the Exhibit button.
***Exhibit is Missing***
Which command displays the output shown in the exhibit?
- A. show chassis hardware
- B. show chassis temperature-thresholds
- C. show chassis environment
- D. show chassis alarms
Answer: C
NEW QUESTION 69
When a system process encounters an error, how does the Junos OS protect the other processes from being impacted?
- A. Each process operates in its own shared memory space.
- B. The Junos OS executes multiple processes simultaneously.
- C. Each routing protocol runs as an individual process.
- D. The Junos OS executes only one process at a time.
Answer: A
Explanation:
http://juniper-basic.blogspot.com/2017/02/juniper-basic.html
Junos OS functionality is compartmentalized into multiple software processes.Each process handles a portion of the device's functionality. Each process runs in its own protected memory space, ensuring that one process cannot directly interfere with another. When a single process fails, the entire system does not necessarily fail.This modularity also ensures that new features can be added with less likelihood of breaking current functionality.The Junos OS is the trusted, secure network operating system powering the high-performance network infrastructure offered by Juniper Networks. The Junos kernel is based on the FreeBSD UNIX operating system, which is an open-sourcesoftware system.
NEW QUESTION 70
What is the default route preference for OSPF internal?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
NEW QUESTION 71
What is the purpose of the discardaction of a firewall filter?
- A. The system drops the packet and logs the entry.
- B. The system evaluates the next term in the policy.
- C. The system silently drops the packet.
- D. The system drops the packet and sends an ICMP message.
Answer: C
Explanation:
Explanation/Reference:
NEW QUESTION 72
Referring to the exhibit, which command will change the 172.16.10.1/24 IP address to 172.16.100.1/24 IP address?
- A. copy interfaces ge-0/0/2 unit 0 family inet address 172.16.10.1/24 to address 172.16.100.1/24
- B. rename interfaces ge-0/0/2 unit 0 family inet address 172.16.10.1/24 to address
172.16.100.1/24 - C. set interfaces ge-0/0/2 unit 0 family inet address 172.16.100.1/24
- D. insert interface ge-0/0/2 unit 0 family inet address 172.16.10.1/24 before address
172.16.100.1/24
Answer: B
Explanation:
https://www.juniper.net/documentation/en_US/junos/topics/reference/command-summary/rename.html
NEW QUESTION 73 
Referring to the exhibit, which command will change the 172.16.10.1/24 IP address to 172.16.100.1/24 IP address?
- A. copy interfaces ge-0/0/2 unit 0 family inet address 172.16.10.1/24 to address 172.16.100.1/24
- B. rename interfaces ge-0/0/2 unit 0 family inet address 172.16.10.1/24 to address
172.16.100.1/24 - C. set interfaces ge-0/0/2 unit 0 family inet address 172.16.100.1/24
- D. insert interface ge-0/0/2 unit 0 family inet address 172.16.10.1/24 before address
172.16.100.1/24
Answer: B
Explanation:
Explanation
https://www.juniper.net/documentation/en_US/junos/topics/reference/command-summary/rename.html
NEW QUESTION 74
What configuration parameter on a Junos device modifies the default next-hop resolution behavior of a static route?
- A. Resolve
- B. Preference
- C. Passive
- D. No-readvertise
Answer: A
NEW QUESTION 75
You are connected to your Junos device using an SSH connection to the fxp0 interface. No other interfaces are currently configured beyond their default settings. You commit a configuration that makes the fxp0 interface unreachable from your management network.
In this scenario, how would you re-establish communication with the device?
- A. Connect to the console of the device.
- B. Establish an SSH connection to the loopback interface.
- C. Unplug the network cable and plug it back in.
- D. Power off and power on the device.
Answer: A
NEW QUESTION 76
Click the Exhibit button.
***Exhibit is Missing***
While working on a Junos device, you receive the message shown in the exhibit.
In this scenario, what should you do to stop the shutdown process?
- A. Issue the request system halt in 0 command
- B. Issue the request system power-off in 0 command
- C. Issue the clear system reboot command
- D. Issue the clear system commit command
Answer: A
NEW QUESTION 77
Referring to the exhibit,
which command will cause this event message?
- A. request system recover
- B. request system halt
- C. request system commit
- D. request system logout
Answer: D
NEW QUESTION 78
Click the Exhibit button.
Referring to the exhibit, which two statements are correct? (Choose two.)
- A. The 15 minute CPU load average is 99%
- B. The memory utilization is 28%
- C. The CPU kernel utilization is 1%
- D. The memory utilization is 72%
Answer: B,C
NEW QUESTION 79
You are considering to upgrade from 19.1R1 and want to ensure that only bug fixes are included. Which two software versions should you use in the current situation? Choose Two
- A. 19.3R1-S1
- B. 19.1R1-S2
- C. 19.1R3
- D. 19.3R2
Answer: B,C
Explanation:
R release : Maintenance and introduce bug fixes
19.1R1 ==> 19.1R2 introduces only bug fixes 19.1R1 ==> 19.2R2 Introduces new features
NEW QUESTION 80
A Junos device is configured with multiple routing protocols to the same destination prefix. By Default, which route will be active in the forwarding table?
- A. A BGP route
- B. An IS-IS route
- C. A static route
- D. An OSPF route
Answer: C
NEW QUESTION 81
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